title: Bis((E)-2-{3-[4-(1H-imidazol-1-yl-κN (3))styr-yl]-5,5-di-methyl-cyclo-hex-2-enyl-idene}malono-nitrile)-diiodido-mercury(II).
abstract: In the title compound, [HgI2(C22H20N4)2], the Hg(II) cation is situated on a twofold rotation axis and is coordinated by two iodide anions and two imidazolyl N atoms in a distorted tetra-hedral geometry. In the crystal, C-H⋯I inter-actions link the mol-ecules into chains extending in [010], which are further linked into sheets parallel to (100) through C-H⋯N hydrogen bonding inter-actions.
authors.affiliation: Department of Chemistry, Anhui University, Hefei 230039, People's Republic of China ; Key Laboratory of Functional Inorganic Materials, Chemistry, Hefei 230039, People's Republic of China.
authors.forename: Wen-Gang
authors.initials: WG
authors.lastname: Xi
authors.forename: Zhi-Chao
authors.initials: ZC
authors.lastname: Wu
authors.forename: Hong-Ping
authors.initials: HP
authors.lastname: Zhou